package chapter05.example04;

public class example04 {
    public static void main(String[] args) {
        String s = "itcast";
        System.out.println("将it替换为cn.it的结果:"+s.replace("it","cn.it"));
        String s1 = "   i t c a s t ";
        System.out.println("去除字符串两端空格后的结果:"+s1.trim());
        System.out.println("去除字符串中所有空格后的结果:"+s1.replace("",""));
    }
}
